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* Merge branch 'for-linus' of ↵Linus Torvalds2015-11-0429-2799/+1253
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull s390 updates from Martin Schwidefsky: "There is only one new feature in this pull for the 4.4 merge window, most of it is small enhancements, cleanup and bug fixes: - Add the s390 backend for the software dirty bit tracking. This adds two new pgtable functions pte_clear_soft_dirty and pmd_clear_soft_dirty which is why there is a hit to arch/x86/include/asm/pgtable.h in this pull request. - A series of cleanup patches for the AP bus, this includes the removal of the support for two outdated crypto cards (PCICC and PCICA). - The irq handling / signaling on buffer full in the runtime instrumentation code is dropped. - Some micro optimizations: remove unnecessary memory barriers for a couple of functions: [smb_]rmb, [smb_]wmb, atomics, bitops, and for spin_unlock. Use the builtin bswap if available and make test_and_set_bit_lock more cache friendly. - Statistics and a tracepoint for the diagnose calls to the hypervisor. - The CPU measurement facility support to sample KVM guests is improved. - The vector instructions are now always enabled for user space processes if the hardware has the vector facility. This simplifies the FPU handling code. The fpu-internal.h header is split into fpu internals, api and types just like x86. - Cleanup and improvements for the common I/O layer. - Rework udelay to solve a problem with kprobe. udelay has busy loop semantics but still uses an idle processor state for the wait" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (66 commits) s390: remove runtime instrumentation interrupts s390/cio: de-duplicate subchannel validation s390/css: unneeded initialization in for_each_subchannel s390/Kconfig: use builtin bswap s390/dasd: fix disconnected device with valid path mask s390/dasd: fix invalid PAV assignment after suspend/resume s390/dasd: fix double free in dasd_eckd_read_conf s390/kernel: fix ptrace peek/poke for floating point registers s390/cio: move ccw_device_stlck functions s390/cio: move ccw_device_call_handler s390/topology: reduce per_cpu() invocations s390/nmi: reduce size of percpu variable s390/nmi: fix terminology s390/nmi: remove casts s390/nmi: remove pointless error strings s390: don't store registers on disabled wait anymore s390: get rid of __set_psw_mask() s390/fpu: split fpu-internal.h into fpu internals, api, and type headers s390/dasd: fix list_del corruption after lcu changes s390/spinlock: remove unneeded serializations at unlock ...
| * s390/cio: de-duplicate subchannel validationPierre Morel2015-11-031-23/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | cio_validate_io_subchannel() and cio_validate_msg_subchannel() are identical, as the called functions already take care about the differences between subchannel types. Just inline the code into the only user, cio_validate_subchannel(), instead. Signed-off-by: Pierre Morel <pmorel@linux.vnet.ibm.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Acked-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * s390/css: unneeded initialization in for_each_subchannelPierre Morel2015-11-031-1/+0
| | | | | | | | | | | | | | | | | | | | The ret variable is always set by the fn function. There is no need to initialize it. Signed-off-by: Pierre Morel <pmorel@linux.vnet.ibm.com> Reviewed-By: Sascha Silbe <silbe@linux.vnet.ibm.com> Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * s390/dasd: fix disconnected device with valid path maskStefan Haberland2015-11-031-1/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Path verification is either done via dasd_eckd_read_conf() which is triggered during online processing and resume or via do_path_verification_work() which is triggered after path events. The dasd_eckd_read_conf() version added paths unconditionally and did not check if the path mask was empty. This led to devices having the disconnected stop flag set but a valid path mask. So they where not working although they had paths validated successfully. After a resume this state could even not be solved with additional paths added. Fix by checking for an empty path mask in dasd_eckd_read_conf() and clearing the device stop bits for a newly added channel path. Reviewed-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * s390/dasd: fix invalid PAV assignment after suspend/resumeStefan Haberland2015-11-031-4/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For a valid PAV assignment the DASD driver needs to notice possibly changed configuration data. Thus the failing of read configuration data should also fail the device restore to prevent invalid PAV assignment. The failed device may get restored after additional paths get available later on. If the restore fails after the device was added to the lcu alias handling it needs to be removed from the alias handling before exiting the restore function. Reviewed-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * s390/dasd: fix double free in dasd_eckd_read_confStefan Haberland2015-11-031-12/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The configuration data is stored per path and also the first valid configuration data per device. When dasd_eckd_read_conf is called again after a path got lost the device configuration data is cleared but possibly not the per path configuration data. This might lead to a double free when the lost path gets operational again. Fix by clearing all per path configuration data when the first valid configuration data is received and stored. Reviewed-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * s390/cio: move ccw_device_stlck functionsSebastian Ott2015-10-273-70/+60
| | | | | | | | | | | | | | | | | | | | device_ops.c should only contain functions that are called by ccw device drivers. Move the cio internal functions that handle unconditional reserve + release to device_pgid.c Acked-by: Peter Oberparleiter <oberpar@linux.vnet.ibm.com> Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * s390/cio: move ccw_device_call_handlerSebastian Ott2015-10-273-48/+38
| | | | | | | | | | | | | | | | | | | | device_ops.c should only contain functions that are called by ccw device drivers. Move the cio internal function ccw_device_call_handler to device_fsm.c where it's used. Remove some useless comments while at it. Acked-by: Peter Oberparleiter <oberpar@linux.vnet.ibm.com> Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * s390/nmi: remove castsHeiko Carstens2015-10-271-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | Remove all the casts to and from the machine check interruption code. This patch changes struct mci to a union, which contains an anonymous structure with the already known bits and in addition an unsigned long field, which contains the raw machine check interruption code. This allows to simply assign and decoce the interruption code value without the need for all those casts we had all the time. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * s390/dasd: fix list_del corruption after lcu changesStefan Haberland2015-10-151-1/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A summary unit check occurs when the lcu updates the PAV configuration e.g. base PAV assignment or PAV mode at all. This requires the reset of the drivers internal pavgroups. Therefore the alias devices are flushed and moved via a temporary list to the active_devices list where they are not associated with a pavgroup. In conjunction with updates to the base device the pavgroup may be removed since both base_list and alias_list are empty. Unfortunately during alias flush and move to the active_device list from alias_list the pavgroup pointer is not deleted in the device private structure. This leads to a list del_corruption if another lcu_update tries to move the device in the non existent pavgroup. Fix by removing the pavgroup pointer after the alias device was moved to the active_devices list. Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * s390/zcrypt: use system work queue for ap_scan_busMartin Schwidefsky2015-10-141-18/+8
| | | | | | | | | | | | | | | | There is a system work queue system_long_wq for long running work. Use this work queue for the AP bus scan loop. Reviewd-by: Ingo Tuchscherer <ingo.tuchscherer@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * s390/zcrypt: remove support for PCICC and PCICA cardsMartin Schwidefsky2015-10-146-1445/+2
| | | | | | | | | | | | | | | | Remove the code for really old crypt cards, PCICC and PCICA. These cards have been out of service for several years. Reviewd-by: Ingo Tuchscherer <ingo.tuchscherer@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * s390/zcrypt: introduce state machine for the AP busMartin Schwidefsky2015-10-142-562/+520
| | | | | | | | | | | | | | | | | | | | | | Replace the two fields 'unregistered' and 'reset' with a device state with 5 possible values. Introduce two events for the AP devices, device poll and device timeout. With the state machine it is easier to deal with device initialization and suspend/resume. Device polling is simpler as well, the arkane 'flags' passing is gone. Reviewd-by: Ingo Tuchscherer <ingo.tuchscherer@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * s390/zcrypt: use explicit return code for flushed requestsMartin Schwidefsky2015-10-146-66/+88
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If a AP device is removed while messages are still pending, the requests are cancelled by calling the message receive function with an error pointer for the reply. The message type receive handler recognize this and create a fake hardware error TYPE82_RSP_CODE / REP82_ERROR_MACHINE_FAILURE. The message with the hardware error then causes a printk and a return code of -EAGAIN. Replace the intricate scheme with an explicit return code for this sitation and avoid the error message. Reviewd-by: Ingo Tuchscherer <ingo.tuchscherer@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * s390/zcrypt: cleanup AP bus timer codeMartin Schwidefsky2015-10-141-18/+6
| | | | | | | | | | | | | | | | | | | | Set the configuration timer at the end of the ap_scan_bus function. Make use of setup_timer and remove some unnecessary add_timer, mod_timer and del_timer_sync calls. Replace the complicated timer_pending, mod_timer and add_timer code in ap_config_time_store with a simple mod_timer. Reviewd-by: Ingo Tuchscherer <ingo.tuchscherer@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * s390/zcrypt: fix suspend/resume of AP bus devicesMartin Schwidefsky2015-10-141-166/+160
| | | | | | | | | | | | | | | | | | | | | | | | | | | | If there are no devices on the AP bus there will not be a single call to the per-device ap_bus_suspend function. Even worse, there will not be a call to the per-device ap_bus_resume either and the AP will fail so resume correctly. Introduce a bus specific dev_pm_ops to suspend / resume the AP bus related things. While we are at it, simplify the power management code of the AP bus. Reviewd-by: Ingo Tuchscherer <ingo.tuchscherer@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * s390/zcrypt: fix device unregister raceMartin Schwidefsky2015-10-141-2/+0
| | | | | | | | | | | | | | | | | | | | The ap_queue_messsage function will call device_unregister if the unregistered field of the device has been set while trying to queue a message. This races with other device_unregister calls, e.g. from the ap_scan_bus. Remove the call to device_unregister from ap_queue_message and let ap_scan_bus deal with it. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * s390/zcrypt: fix memory leak with ap configuration dataMartin Schwidefsky2015-10-142-133/+117
| | | | | | | | | | | | | | | | | | | | | | | | | | The ap_query_configuration function allocates the ap_config_info structure, but there is no code to free the structure. Allocate the structure in the module_init function and free it again in module_exit. While we are at it simplify a few functions in regard to the ap configuration data. Reviewed-by: Ingo Tuchscherer <ingo.tuchscherer@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * s390/zcrypt: remove duplicate low level functionsMartin Schwidefsky2015-10-142-117/+32
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ap_test_queue, ap_query_facilities, __ap_query_functions all use the same PQAP(TAPQ) command. Consolidate the three into a single ap_test_queue function that returns the AP status and the 64-bit result. The exception table entry for PQAP(TAPQ) can be avoided if the T bit for the APFT facility is set only if test_facility(15) indicated that the facility is present. Integrate ap_query_function into ap_query queue to avoid calling PQAP(TAPQ) twice. Reviewed-by: Ingo Tuchscherer <ingo.tuchscherer@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * s390/sclp: avoid merged message outputMartin Schwidefsky2015-10-143-83/+78
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The sclp console and tty code currently uses several message text objects in a single message event to print several lines with one SCCB. This causes the output of these lines to be fused into a block which is noticeable when selecting text in the operating system message panel. Instead use several message events with a single message text object each to print every line on its own. This changes the SCCB layout from struct sccb_header struct evbuf_header struct mdb_header struct go struct mto ... struct mto to struct sccb_header struct evbuf_header struct mdb_header struct go struct mto ... struct evbuf_header struct mdb_header struct go struct mto Reviewed-by: Peter Oberparleiter <oberpar@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * s390/diag: add a statistic for diagnose callsMartin Schwidefsky2015-10-144-3/+20
| | | | | | | | | | | | | | Introduce /sys/debug/kernel/diag_stat with a statistic how many diagnose calls have been done by each CPU in the system. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * s390/cio: introduce pathmask_to_posSebastian Ott2015-10-142-9/+6
| | | | | | | | | | | | | | | | | | | | We often need to correlate an 8 bit path mask with the position in a channel path array. Introduce and use pathmask_to_pos for that task. Reviewed-by: Peter Oberparleiter <oberpar@linux.vnet.ibm.com> Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * s390/cio: reactivate cmf after hibernateSebastian Ott2015-10-143-0/+15
| | | | | | | | | | | | | | | | | | | | | | | | During resume from hibernate we already reenable measurement block updates on a per device basis. In addition to that we also need to activate channel measurement globally using the set channel monitor instruction. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Reviewed-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * s390/cio: use kmem_cache for extended measurement block allocationSebastian Ott2015-10-141-38/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | Extended measurement blocks need to be 64 byte aligned. To achieve that 128 bytes for each measurement block are allocated and an align callback returns a 64 byte aligned address inside this area. Replace this code with kmem_cache allocations. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Reviewed-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * s390/cio: fix memleak in channel measurementSebastian Ott2015-10-141-1/+3
| | | | | | | | | | | | | | | | | | | | | | The measurement block for the extended measurement data is not freed when switching off per device measurement. Free the measurement block after HW stopped accessing it. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Reviewed-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * s390/cio: improve locking during cmbe allocationSebastian Ott2015-10-141-20/+23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | During allocation of extended measurement blocks we check if the device is already active for channel measurement and add the device to a list of devices with active channel measurement. The check is done under ccwlock protection and the list modification is guarded by a different lock. To guarantee that both states are in sync make sure that both locks are held during the allocation process (like it's already done for the "normal" measurement block allocation). Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Reviewed-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * s390/cio: fix use after free in cmb processingSebastian Ott2015-10-142-11/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Devices with active channel measurement are included in a list. When a device is removed without deactivating channel measurement first the list_head is freed but still used. Fix this by making sure that channel measurement is deactivated during device deregistration. For devices that we deregister because they are no longer accessible deactivating channel measurement will fail. In this case we can report success because the FW will no longer access the measurement block. In addition to these steps keep an extra device reference while channel measurement is active. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * s390/cio: use device_lock during cmb activationSebastian Ott2015-10-142-13/+38
| | | | | | | | | | | | | | | | | | Hold the device_lock during [de]activation of the channel measurement block to synchronize concurrent usage of these functions. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Reviewed-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * s390/cio: cleanup cmb_enable sysfs attrSebastian Ott2015-10-141-8/+14
| | | | | | | | | | | | | | | | | | | | Ensure that we hold the ccwlock when accessing private data. Return errors that occur during measurement enabling to userspace. Apply some cleanups while at it. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * s390/dasd: mark DASD devices as non rotationalChristian Borntraeger2015-10-141-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We were able to reduce the CPU overhead of big paging scenarios when announcing our paging disks as non-rotational. Almost all dasd devices are implemented in storage servers with cache, raid, striping and lots of magic. There is no point in optimizing the disk schedulers and swap code for a single platter moving arm rotational disks. Given the complexity of the setup and the fact that this change is mostly to disable the additional overhead in swap code, lets keep the other functionality unchanged and do not disable the this device as entropy source - unlike other non-rotational devices. Suggested-by: Christian Ehrhardt <ehrhardt@linux.vnet.ibm.com> Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * s390/zcrypt: enable odd RSA modulus sizes in CRT formatIngo Tuchscherer2015-10-144-5/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | In the past only even modulus sizes were allowed for RSA keys in CRT format. This restriction was based on limited RSA key generation on older crypto adapters that provides only even modulus sizes. This restriction is not valid any more. Revoke restrictions that crypto requests can be serviced with odd RSA modulus length in CRT format. Signed-off-by: Ingo Tuchscherer <ingo.tuchscherer@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* | Merge branch 'parisc-4.3-2' of ↵Linus Torvalds2015-11-042-13/+8
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux Pull parisc updates from Helge Deller: "The most important change is that we reduce L1_CACHE_BYTES to 16 bytes, for which a trivial patch for XPS in the network layer was needed. Then we wire up the sys_membarrier and userfaultfd syscalls and added two other small cleanups" * 'parisc-4.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: parisc: Change L1_CACHE_BYTES to 16 net/xps: Fix calculation of initial number of xps queues parisc: reduce syslog debug output parisc: serial/mux: Convert to uart_console_device instead of open-coded parisc: Wire up userfaultfd syscall parisc: allocate sys_membarrier system call number
| * | parisc: reduce syslog debug outputHelge Deller2015-10-221-6/+6
| | | | | | | | | | | | Signed-off-by: Helge Deller <deller@gmx.de>
| * | parisc: serial/mux: Convert to uart_console_device instead of open-codedAxel Lin2015-10-221-7/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | The implementation of mux_console_device() is very similar to uart_console_device(). Setting .data field in mux_console then we can convert to use uart_console_device(). Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Helge Deller <deller@gmx.de>
* | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/ideLinus Torvalds2015-11-041-5/+5
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull IDE fixlet from David Miller: "Just a y2038 fix to the pdc202xx_new IDE driver" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide: ide: pdc202xx_new: Replace timeval with ktime_t
| * | | ide: pdc202xx_new: Replace timeval with ktime_tAmitoj Kaur Chawla2015-11-031-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This driver uses 'struct timeval' which we are trying to remove since 32 bit time types will break in the year 2038 by replacing it with ktime_t. This patch changes do_gettimeofday() to ktime_get() because ktime_get() returns a ktime_t while do_gettimeofday() returns struct timeval. This patch also uses ktime_us_delta() to get the elapsed time. Signed-off-by: Amitoj Kaur Chawla <amitoj1606@gmail.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextLinus Torvalds2015-11-04965-13081/+94091
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull networking updates from David Miller: Changes of note: 1) Allow to schedule ICMP packets in IPVS, from Alex Gartrell. 2) Provide FIB table ID in ipv4 route dumps just as ipv6 does, from David Ahern. 3) Allow the user to ask for the statistics to be filtered out of ipv4/ipv6 address netlink dumps. From Sowmini Varadhan. 4) More work to pass the network namespace context around deep into various packet path APIs, starting with the netfilter hooks. From Eric W Biederman. 5) Add layer 2 TX/RX checksum offloading to qeth driver, from Thomas Richter. 6) Use usec resolution for SYN/ACK RTTs in TCP, from Yuchung Cheng. 7) Support Very High Throughput in wireless MESH code, from Bob Copeland. 8) Allow setting the ageing_time in switchdev/rocker. From Scott Feldman. 9) Properly autoload L2TP type modules, from Stephen Hemminger. 10) Fix and enable offload features by default in 8139cp driver, from David Woodhouse. 11) Support both ipv4 and ipv6 sockets in a single vxlan device, from Jiri Benc. 12) Fix CWND limiting of thin streams in TCP, from Bendik Rønning Opstad. 13) Fix IPSEC flowcache overflows on large systems, from Steffen Klassert. 14) Convert bridging to track VLANs using rhashtable entries rather than a bitmap. From Nikolay Aleksandrov. 15) Make TCP listener handling completely lockless, this is a major accomplishment. Incoming request sockets now live in the established hash table just like any other socket too. From Eric Dumazet. 15) Provide more bridging attributes to netlink, from Nikolay Aleksandrov. 16) Use hash based algorithm for ipv4 multipath routing, this was very long overdue. From Peter Nørlund. 17) Several y2038 cures, mostly avoiding timespec. From Arnd Bergmann. 18) Allow non-root execution of EBPF programs, from Alexei Starovoitov. 19) Support SO_INCOMING_CPU as setsockopt, from Eric Dumazet. This influences the port binding selection logic used by SO_REUSEPORT. 20) Add ipv6 support to VRF, from David Ahern. 21) Add support for Mellanox Spectrum switch ASIC, from Jiri Pirko. 22) Add rtl8xxxu Realtek wireless driver, from Jes Sorensen. 23) Implement RACK loss recovery in TCP, from Yuchung Cheng. 24) Support multipath routes in MPLS, from Roopa Prabhu. 25) Fix POLLOUT notification for listening sockets in AF_UNIX, from Eric Dumazet. 26) Add new QED Qlogic river, from Yuval Mintz, Manish Chopra, and Sudarsana Kalluru. 27) Don't fetch timestamps on AF_UNIX sockets, from Hannes Frederic Sowa. 28) Support ipv6 geneve tunnels, from John W Linville. 29) Add flood control support to switchdev layer, from Ido Schimmel. 30) Fix CHECKSUM_PARTIAL handling of potentially fragmented frames, from Hannes Frederic Sowa. 31) Support persistent maps and progs in bpf, from Daniel Borkmann. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1790 commits) sh_eth: use DMA barriers switchdev: respect SKIP_EOPNOTSUPP flag in case there is no recursion net: sched: kill dead code in sch_choke.c irda: Delete an unnecessary check before the function call "irlmp_unregister_service" net: dsa: mv88e6xxx: include DSA ports in VLANs net: dsa: mv88e6xxx: disable SA learning for DSA and CPU ports net/core: fix for_each_netdev_feature vlan: Invoke driver vlan hooks only if device is present arcnet/com20020: add LEDS_CLASS dependency bpf, verifier: annotate verbose printer with __printf dp83640: Only wait for timestamps for packets with timestamping enabled. ptp: Change ptp_class to a proper bitmask dp83640: Prune rx timestamp list before reading from it dp83640: Delay scheduled work. dp83640: Include hash in timestamp/packet matching ipv6: fix tunnel error handling net/mlx5e: Fix LSO vlan insertion net/mlx5e: Re-eanble client vlan TX acceleration net/mlx5e: Return error in case mlx5e_set_features() fails net/mlx5e: Don't allow more than max supported channels ...
| * | | | sh_eth: use DMA barriersSergei Shtylyov2015-11-031-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 7d7355f58ba4 ("sh_eth: Ensure proper ordering of descriptor active bit write/read") did the right thing but used too "heavy" barriers while there were already "lighter" DMA barriers exactly for this case... Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller2015-11-0318-53/+143
| |\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Minor overlapping changes in net/ipv4/ipmr.c, in 'net' we were fixing the "BH-ness" of the counter bumps whilst in 'net-next' the functions were modified to take an explicit 'net' parameter. Signed-off-by: David S. Miller <davem@davemloft.net>
| | * | | | net: phy: fix a bug in get_phy_c45_idsShaohui Xie2015-11-031-25/+49
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When probing devices-in-package for a c45 phy, device zero is the last device to probe, however, if driver reads 0 from device zero, c45_ids->devices_in_package is set to '0', the loop condition of probing will be matched again, see codes below: for (i = 1;i < num_ids && c45_ids->devices_in_package == 0;i++) driver will run in a dead loop. This patch restructures the bug and confusing loop, it provides a helper function get_phy_c45_devs_in_pkg which to read devices-in-package registers of a MMD, and rewrites the loop with using the helper function. Signed-off-by: Shaohui Xie <Shaohui.Xie@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| | * | | | sfc: push partner queue for skb->xmit_moreMartin Habets2015-11-034-4/+36
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When the IP stack passes SKBs the sfc driver puts them in 2 different TX queues (called partners), one for checksummed and one for not checksummed. If the SKB has xmit_more set the driver will delay pushing the work to the NIC. When later it does decide to push the buffers this patch ensures it also pushes the partner queue, if that also has any delayed work. Before this fix the work in the partner queue would be left for a long time and cause a netdev watchdog. Fixes: 70b33fb ("sfc: add support for skb->xmit_more") Reported-by: Jianlin Shi <jishi@redhat.com> Signed-off-by: Martin Habets <mhabets@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| | * | | | ppp, slip: Validate VJ compression slot parameters completelyBen Hutchings2015-11-024-15/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently slhc_init() treats out-of-range values of rslots and tslots as equivalent to 0, except that if tslots is too large it will dereference a null pointer (CVE-2015-7799). Add a range-check at the top of the function and make it return an ERR_PTR() on error instead of NULL. Change the callers accordingly. Compile-tested only. Reported-by: 郭永刚 <guoyonggang@360.cn> References: http://article.gmane.org/gmane.comp.security.oss.general/17908 Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
| | * | | | isdn_ppp: Add checks for allocation failure in isdn_ppp_open()Ben Hutchings2015-11-021-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Compile-tested only. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
| | * | | | qmi_wwan: fix entry for HP lt4112 LTE/HSPA+ Gobi 4G ModuleBjørn Mork2015-11-021-1/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The lt4112 is a HP branded Huawei me906e modem. Like other Huawei modems, it does not have a fixed interface to function mapping. Instead it uses a Huawei specific scheme: functions are mapped by subclass and protocol. However, the HP vendor ID is used for modems from many different manufacturers using different schemes, so we cannot apply a generic vendor rule like we do for the Huawei vendor ID. Replace the previous lt4112 entry pointing to an arbitrary interface number with a device specific subclass + protocol match. Reported-and-tested-by: Muri Nicanor <muri+libqmi@immerda.ch> Tested-by: Martin Hauke <mardnh@gmx.de> Fixes: bb2bdeb83fb1 ("qmi_wwan: Add support for HP lt4112 LTE/HSPA+ Gobi 4G Modem") Signed-off-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>
| | * | | | sh_eth: fix WARNING in dma_common_free_remap()Sergei Shtylyov2015-11-021-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Iff the first dma_alloc_coherent() call fails in sh_eth_ring_init(), the following is printed to the kernel console: WARNING: CPU: 0 PID: 1 at drivers/base/dma-mapping.c:334 dma_common_free_remap+0x48/0x6c() trying to free invalid coherent area: (null) Modules linked in: CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.3.0-rc7-dirty #969 Hardware name: Generic R8A7791 (Flattened Device Tree) Backtrace: [<c0013820>] (dump_backtrace) from [<c00139bc>] (show_stack+0x18/0x1c) r6:c0662856 r5:00000009 r4:00000000 r3:00204140 [<c00139a4>] (show_stack) from [<c0227510>] (dump_stack+0x74/0x90) [<c022749c>] (dump_stack) from [<c0026ef4>] (warn_slowpath_common+0x8c/0xb8) r4:ee84dce0 r3:c0712774 [<c0026e68>] (warn_slowpath_common) from [<c0026fc4>] (warn_slowpath_fmt+0x38/0x40) r8:ee7f8000 r7:c0734520 r6:00001000 r5:20000008 r4:00000000 [<c0026f90>] (warn_slowpath_fmt) from [<c02df404>] (dma_common_free_remap+0x48/0x6c) r3:00000000 r2:c0662871 [<c02df3bc>] (dma_common_free_remap) from [<c001b9fc>] (__arm_dma_free+0xb8/0xd4) r6:00000001 r5:00000000 r4:00001000 r3:ee8c5584 [<c001b944>] (__arm_dma_free) from [<c001ba68>] (arm_dma_free+0x24/0x2c) r10:0000016b r8:00000000 r7:ee9bc830 r6:00000000 r5:00000400 r4:ee9bc800 [<c001ba44>] (arm_dma_free) from [<c032ebf0>] (sh_eth_ring_init+0x110/0x138) [<c032eae0>] (sh_eth_ring_init) from [<c033179c>] (sh_eth_open+0x94/0x1f4) r6:00000000 r5:ee9bcd18 r4:ee9bc800 [<c0331708>] (sh_eth_open) from [<c041bf7c>] (__dev_open+0x84/0x104) r6:c0565c50 r5:00000000 r4:ee9bc800 [<c041bef8>] (__dev_open) from [<c041c208>] (__dev_change_flags+0x94/0x13c) r7:00001002 r6:00000001 r5:00001003 r4:ee9bc800 [<c041c174>] (__dev_change_flags) from [<c041c2e8>] (dev_change_flags+0x20/0x50) r7:c072c8a0 r6:00000138 r5:00001002 r4:ee9bc800 [<c041c2c8>] (dev_change_flags) from [<c06e8d4c>] (ip_auto_config+0x174/0xf7c) r8:00001002 r7:c072c8a0 r6:c0700040 r5:00000001 r4:ee9bc800 r3:00000101 [<c06e8bd8>] (ip_auto_config) from [<c000a810>] (do_one_initcall+0x100/0x1c8) r10:c06f883c r9:00000000 r8:c06e8bd8 r7:c0734000 r6:c070e918 r5:c070e918 r4:ee083640 [<c000a710>] (do_one_initcall) from [<c06c9ddc>] (kernel_init_freeable+0x11c/0x1ec) r10:c06f883c r9:00000000 r8:00000099 r7:c0734000 r6:c070372c r5:c06f8834 r4:00000007 [<c06c9cc0>] (kernel_init_freeable) from [<c0514d78>] (kernel_init+0x14/0xec) r10:00000000 r8:00000000 r7:00000000 r6:00000000 r5:c0514d64 r4:c0734000 [<c0514d64>] (kernel_init) from [<c0010458>] (ret_from_fork+0x14/0x3c) r4:00000000 r3:ee84c000 This is because the code jumps to a wrong label and so tries to free yet unallocated coherent memory. Fix the *goto* in question. Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| | * | | | sh_eth: fix uninitialized arrays in sh_eth_ring_init()Sergei Shtylyov2015-11-021-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | sh_eth_ring_free() called in the sh_eth_ring_init()'s error path expects the arrays pointed to by 'sh_eth_private::[rt]x_skbuff' to be initialized with NULLs but they are allocated with just kmalloc_array() and so are left filled with random data. Use kcalloc() instead. Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| | * | | | Merge tag 'linux-can-fixes-for-4.3-20151030' of ↵David S. Miller2015-11-021-1/+1
| | |\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can Marc Kleine-Budde says: ==================== pull-request: can 2015-10-30 this is a pull request for the upcoming v4.3 release. Marek Vasut provides a patch to use the correct attrlen in the nla_put() in the can_fill_info() function. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
| | | * | | | can: Use correct type in sizeof() in nla_put()Marek Vasut2015-10-301-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The sizeof() is invoked on an incorrect variable, likely due to some copy-paste error, and this might result in memory corruption. Fix this. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Wolfgang Grandegger <wg@grandegger.com> Cc: netdev@vger.kernel.org Cc: linux-stable <stable@vger.kernel.org> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
| | * | | | | stmmac: Correctly report PTP capabilities.Phil Reid2015-11-011-2/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | priv->hwts_*_en indicate if timestamping is enabled/disabled at run time. But priv->dma_cap.time_stamp and priv->dma_cap.atime_stamp indicates HW is support for PTPv1/PTPv2. Signed-off-by: Phil Reid <preid@electromag.com.au> Acked-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| | * | | | | net: bcmgenet: Software reset EPHY after power onFlorian Fainelli2015-11-013-1/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The EPHY on GENET v1->v3 is extremely finicky, and will show occasional failures based on the timing and reset sequence, ranging from duplicate packets, to extremely high latencies. Perform an additional software reset, and re-configuration to make sure it is in a consistent and working state. Fixes: 6ac3ce8295e6 ("net: bcmgenet: Remove excessive PHY reset") Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-06 02:18:26 +0100